Working first in hardware design and later in software, I have had primary responsibility for a number of innovative, commercially successful products.A general thread throughout my career has been the integration of video and computer graphics.

While working at Microsoft I was the primary author of the video capture interface for Microsoft Windows which has arguably spawned the largest corpus of digital content anywhere on the web: streamed and captured video.

Primary architect at Microsoft for the WDM video
capture model, which is integral to all versions of Microsoft Windows
since Win98. This core system infrastructure is to capture, stream,
and route video, tune broadcast signals, and control conferencing cameras. The
technology is used by capture applications such as Premiere, Netmeeting,
Skype, Windows Messenger, Flash, Media Center, and virtually every other
product which captures live video and integrates television functionality
into Windows.

Optimas

One of two primary authors of a Windows based image
processing, analysis, measurement, and visualization toolbox and application
generator for biomedical and industrial applications ($4K / seat). Sold
to Media Cybernetics.

SnapShot

One of the earliest video image capture and enhancement
programs for desktop publishing under Windows. Licensed to Aldus Corporation
(ultimately Adobe).

Primary architect of the video capture and television
infrastructure in the Microsoft Windows Operating Systems. This work
has spanned two generations of development: VFW introduced in 1992,
and WDM introduced in 1998. In both cases this involved design and implementation
of the driver and streaming model, as well as the user mode infrastructure
used by applications to acquire video for editing, conferencing, television
tuning, and image processing.

The WDM model is the successor to VFW and is available
on Win98 through Win8. This technology is used by Media Center
and virtually all Windows video capture and telepresence applications.
WDM video capture includes worldwide tuning for both analog and digital
broadcast television, support for 1394 and USB cameras, PCI and videoport
capture hardware, and is fully integrated with the DirectShow environment.

In addition to writing a number of sample and production
drivers for both VFW and WDM, I am primary author of Vidcap, AVICap,
and a number of DirectShow filters for television tuning, video routing,
MPEG transport stream analysis, and VBI and audio software oscilloscopes.
While focusing on product design and implementation, I have also acted
as a technical lead for other developers, given numerous technical seminars
at venues such as Meltdown and WinHec, and provided significant outreach
and support to the hundreds of IHVs and ISVs developing drivers and
applications for both capture models. My design, development and debugging
skills span user and kernel mode. I am particularly strong in the areas
of C/C++ programming, WDM drivers using the Stream Class, Kernel Streaming,
and DirectShow, video, television, and MPEG.

Parent company of BioScan. Designed OPRS (Optical
Pattern Recognition System) for video image analysis in the realm of
fisheries research. This work later was the basis for OPTIMAS and formation
of BioScan.

Telematic Products,
Inc Redmond , WA

1983 - 1985

Hardware design of peripheral controllers and interfaces
to Bell switching equipment to record telephone billing information
and RAM/ROM memory board for NEC PC.

Western Marine
Electronics Seattle , WA

1980 - 1982

Senior Sonar Engineer. Designed worlds' first commercial
scanning sonar utilizing color graphic video display for navigation,
fishing, and security applications. Total product responsibility: Z80
uP design, color video display, switching power supply, PCB layout,
and assembly control program. This product family had a lifespan of
8 years and a retail value of over $25 million. After product introduction,
traveled throughout Asia and Oceania for 7 months giving demonstrations
and seminars.

University of
Washington
Dept. of Physiology, Dept. of Bioengineering

1979 - 1980

Designed analog instrumentation and Fortran computer
interfaces for electro physiological experiments in neural activity.
Designed video display portion of a Doppler ultrasound imaging system
for cardiovascular applications.

Strobe Data,
Inc Bellevue , WA

1977 - 1979

Hardware design of a wide variety of Data General
Nova and 8085 interfaces: floppy disk, RS 232/432, A/D converters, and
a video weather data system for the FAA.

Patents

Worldwide television tuning system with country
code based tuning.United States 7,042,526 Issued May
9, 2006

Worldwide television tuning system with object-based
tuning control modules.United States 6,340,997 Issued January 22,
2002